Heel clamping device



July 9, 1935. M A, SHAFFNER H v HEEL CLAMPING DEVICE Filed April l5,1955 UNITED? kentras Patented July? .9,1935

lea'ren'i lorries 2,667,616 1 HEEL emr/renie nnvror, Melden A.shaenearniwaukeawa.

Application April 15,

f 5 Claims.

' Dec. 5, 1933)'. AAll ofthese clamps with which I away fromV the breastof the sole.

am familiarare objectionable, inthat the pressure is not'evenlydistributed to the heelV duev to the shape of the heel, and the heeltends to cant or twist on its-seat resulting in an unsatisfactory bondbetween the heel and seat. Further, with all of these clamps, the frontedge of the heel is not nrmly held against the breast of the sole and infact, the clamp tends to pull the heel It is therefore one of thesalient eatures'o my invention to provide a novelclamp which willAeffectively hold the heel on its seat and evenly distribute thepressure over the entire heel seat and rmly hold the the sole.

A further important object of my invention is to provide a` compensatingheel clamp, which is so constructed that the clamp is permitted to giveas pressure is applied to the heel and last, therebyallowing theYeffective distribution of the thrust to the heel seat. j

' A further important object of my invention is the provision of `anovel shoeheel clamp of a heel against the breast of substantiallyC-shape having an adjustable screw for engaging the last and a footforengaging the tread or lift of the heel, the lower part of Vthe clampclosely conforming to the configuration.,

of the rear of the heel and being provided with a pivot joint, -wherebyupon the tightening Yof the clamping screw the foot will be brought intopressure contact with the heel and whereby the clamp `will give at itsjoint permitting kforward thrust at the jointon the heel which thrust incombination with the thrust on the tread of the heel holds the heel rmlyon its heel seat with a forward thrust, so that the -front edge of theheel will be held into intimate contact with the breast of the sole.

A further object of my invention is the provision of the use of a shortlength of rubber tubing or hose for enclosing the clamp at its joint,the inherent resiliency of the tubing tending to hold the sections ofthe clamp in proper place and acting as a buffer or guard for engagingthe ex- 1933, senat No. 666,275

terior face ofthe heel toprevent Inarrng of the surface,`the tubingbeing movable around the joint so that as one part thereof becomessoiled, another part thereof can be brought into position for' engagingthe heel. i v y A further object of my inventionis the provision of aremovable Ypin holding the sectionsof the clamp together at their pivotpoint, the pin being held in place by the rubber tubing or sleeve, theuse of thepin permitting thefree removal` 10 of the clamping part, whenit isdesired to renew the rubber tubing, when the vsamebecomes worn.

A still further object of my inventionis toprovide an improved clampofthe above character, which will be durable and eilicient in use, onev15 which can be Yplaced upon the market-at a reasonable cost. A' .Y Y iY With these vand other objects in view, the invention consistsiin thenovel construction, varrangement and formation of parts, as willY behereinafter more specically described, claimed and illustrated in theaccompanying drawing, in

which:- f

igure l is a side elevation of my improved vclamp showing the sameapplied to a shoe and last and just prior to the final tighteningthereof,

the rubber tubing for the joint being shown partially broken away and insection. Y `Figure 2 is a fragmentary detail section of the lower end ofthe clamp showing the pivot joint with its loose pivot pin.

Figures 3, 4 and 5 illustrate slightlymodiiied forms 'of devices forengaging the heel.

Referring to the drawing in detail, wherein similar reference charactersdesignate the corresponding parts throughout the several views, theletter A generally indicates my improved clamp for holding a French heel5 on a shoe 5, being fabricated on a conventional'last l. The shoe ismanufactured in accordance with the usual method and my improvedclamping device A is utilized for effectively holding the heel 5 on` itsheel seat and firmly against the breast of the sole.

Asclearly shown in Figure l, my improved clamp A Yis of a substantiallyC-shape and the upper end thereof is provided with a substantiallyvertically disposed threaded boss or sleeve i@v in which is adjustablymounted the clamping screw ii having the nurled head i2 on its upper endand the smooth button i3 on its lower end V for engaging the last. Thelower end of the C- shaped body portion ill of the clamp receives thepivoted angle foot l5, the horizontal portion Vl5V of which carriesmeans il for engaging the tread f or lift of the heel 5.' 'The meetingAends of the 55 angle foot I5 and the body I4 are provided with matingoverlapping pivot ears I8 and these ears are provided with registeringopenings for the reception of a loose and freely removable pivot pin IS.

By the construction so far, it is to be noted that the lower end of thebody I 4 of the clamp and the upper end of the angle foot I5 closelyconform to the curvature of the outer surface of the heel and that thefoot is permitted to give or swing as the clamp is adjusted.

In order to hold the angle foot against free unhindered swingingmovement, a rubber sleeve is placed over the pivoted joint and thisrubber sleeve may be in the nature of a short length of rubber tubing orhose. The same can be placed in position` in the following way, namely;the pin I9 is removed and the rubber sleeve is slipped on the lower endof the body until the same rides past the ear formed on the lower end ofthe body after which the angle foot is placed into position and the pinis disposed through the registering openings, afterwhich the rubbersleeve is slipped down in the position shown in Figure 1 of the drawing.When the rubber sleeve becomes worn, it is merely necessary to push upthe same, as shown in dotted lines in Figure 1, remove the pin, slip oithe sleeve and place a new length in position.

Particular stress is laid on the following action of the clamp and thesame is applied to the shoe and last as shown in Figure 1 of thedrawing, after which the screw clamp is tightened. 'Ihis causes adrawing action between the button I3 of the screw and the angle foot andas this drawing action increases, the clamp breaks at its joint inwardlyand moves into forcible contact withthe heel resulting in a forwardmovement to hold the heel against the breast of the sole and an inwardthrust, so as to evenly distribute the pressure over the'entire heelseat.

YIn practice, it has been found that this clamp effectively accomplishesthe purpose intended and particular stress is laid on the fact that twolines of force are exerted on the heel with the adjustment of a, singlescrew.

In Figure 3 I have shown a slightly modified form of means for engagingthe lift of the heel and as shown the arm I6 of the lower member I5 isprovided with an integral foot 25 for engaging the lift of the heel.

In Figure 4, I have shown a further modified form of means for engagingthe heel lift. In this form I provide a tapered pin 26 which can extendthrough the arm I6 and can be held in place by having its lower endupset, as at 21.

In Figure 5, I have shown a still further modified form of means forengaging the lift of the heel. In this particular form a taperedprojection 28 is formed directly on the outer end of the arm I6 and thisprojection can be formed in the middle of a cup-shaped recess 29, whichlimits the penetration of the projection into the heel lift.

Obviously the integral foot and its associated part I6 may in some casesbe pivoted to the lower member I5.

Changes in details may be made without departing from the spirit or thescope of this invention, but what I claim as new is:-

l. A shoe heel clamp comprising a body oi a substantially C-shape, aApivoted. angle foot connected to the lower endl of the body having aforward projecting portion for engaging the lift of the heel to beclamped, the pivot for the angle foot being disposed in rear of the heelto be clamped, the angle foot and lower end of the body closelyfollowing the curvature of the heel, and an adjusting screw carried bythe upper end of the body.

2. A shoe heel clamp comprising a body of a substantially C-shape, anangle foot pivotally connected to the lower end of the body, the pivotfor the angle foot being disposed in rear of the heel to be clamped, aclamping screw carried by the upper end of the body, and means normallytending to hold the angle foot against swinging movement relative to thebody.

3. A shoe heel clamp comprising a substantially C-shape body portion, anangle foot pivotally connected to the lower end of the body, the pivotfor the angle foot being disposed in rear of the heel to be clamped, thefoot and lower end of the body closely conforming to the rear of theshoe heel being clamped, and an adjusting'screw carried by the upper endof the body, movement of the screw tending' to force the angle footfintoengagement with the lower face of the heel and the lower end of the bodyinto engagement with an intermediate portion of the heel.

4. A shoe heel clamp comprising a substantially C-shaped body portion,an angle foot pivotally connected to the lower end of the body portion,the pivot for the angle foot being disposed in rear of the heel to beclamped, the angle foot and lower end of the body portion closelyconforming to the exteriorl configuration of the rear of the heel beingclamped, and a short length of rubber tubing housing said pivotalconnection of the body and foot for engaging the rear face of the heel.

5. A shoe heel clamp comprising a substantially C-shaped body portion,an adjusting screw carried by the upper end of the body portion, anangleshaped foot disposed below the body portion, the meeting ends ofthe body portion and foot being disposed in rear of the heel to beclamped and provided with overlapping ears having registering openings,a pivot pin removably tted in the openings of the ears, and a shortlength of tubing slipped over the lower endof the body portion and theupper end of the foot enclosing said ears whereby to prevent loss of thepivot pin and for abutting engagement with an intermediate portion ofthe heel being clamped.

MELDON A. SHAFFNER.

